Gauging device



. Z 9 3 beam nuull /NVEN'OR K A. BOUGET ATTORNEY w w m m U Q May 18, 1937. Y. A. BouGET GAUGING DEvIcE Filed Jan. 15,' 1935 2 Sheets-Sheet 2 lllllllllllllnslllllllllllh /NvE/vroR I. A. BOUGE T A rroR/vfr* UNITED STATES Seaton huw PATENT OFFICE GAUGING DEVICE Yves A. Bouget, West Orange, N. J., assgnor to Western Electric Company, Incorporated, New York, N. Y., a, corporation of New York Application January 15, 1935, Serial No. 1,833

11 claims.

This invention relates to a gauging device and more particularly to a jig or templet for accurately locating perforations to be made in a piece of work.

In the use of mechanical power tools for punching and boring it often occurs that a plurality of p erforations or bores of one size is to be made in a single piece of work.

An object of the present invention is to pro-Y vide a simple, accurate and rugged device for holding a piece of work and presenting accurately prelocated points thereof to a punch, drill or other tool.

One embodiment of the invention contemplates a templet or jig for holding a sheet metal blank and having male or female arcuate faces formed therein or on members secured thereto and adapted to match with a correspondingly formed female or male member secured to a stationary part of the punch press, drill press or other machine tool, the center of the arcuate face of the member on the machine tool being in the axis of the punch, drill or other tool.

Other objects and features of the invention will appear from the following detailed description of embodiments thereof taken in connection withy the appended drawings in which the same reference numerals are applied to identical parts in the several figures and in which Fig. 1 is a broken plan view of a templet constructed in accordance with the invention having a sheet metal blank clamped therein;

Fig. 2 is an edge view thereof;

Fig. 3 is a broken partial plan view of another form thereof;

Fig. 4 is an enlarged broken perspective view of a gauge notch of the device of Fig. 1;

Fig. 5 is a similar view of a gauge collar of the device of Fig. 3;

Fig. 6 is a vertical section of Fig. 5; I

Fig. '7 is a vertical section of one of the clamps;

Fig. 8 is a partial broken reverse plan View of a third form of the invention;

Fig. 9 is a vertical section thereof;

Fig. 10 is a view showing the invention as used in connection with a punch press having a stripper plate modified to coact therewith;

Fig. 11 is a broken detail plan view showing a stripper plate coacting with the device of Fig. 3;

Fig. 12 is a broken 'partial side elevation of Fig. 11;

Fig. 13 is a view similar to Fig. 11 related to Fig.1, and

Fig. 14 is a broken partial side elevation of Fig. 13.

In the embodiment of the invention disclosed in Figs. 1, 2, 4, 7, 10 and 13, a combination work holder and j ig or templet I9 has a body comprising four flat strips 20, 2l, 22 and 23, with ends joined together along seams 24, 25, 26 and 21, as by welding, to lie in one plane; or this hollow rectangular body may be cut from one sheet of material. It is formed at appropriate points near its outer periphery and on its under side with three hooks or fixed clamps 28, secured to or integral with the body, and at three other appropriate points with three adjustable or releasable clamps 29. Each of these clamps 29 comprises a nut member 30 secured as by welding to the upper face of the templet with its threaded bore at an acute angle thereto. A coacting screw or bolt 3| is engaged in the nut with its enlarged and overhangingly headed lower end 32 extending either past an outer edge of the templet or through an aperture therein to reach below the under face of the templet. 'I'he upper end 33 of the screw is squared or made hexagonal to be turned by a wrench if necessary.

A piece of Work, in this instance a rectangular piece of sheet metal 34 with two corners notched out, may be secured against the under face of the templet, as best shown in Figs. 1 and 2, by lnserting two edges thereof into the hooks 28 and securing the other two edges under the heads 32 of the clamp screws 3l. If a plurality of sheets 34, mutually identically similar, are to be all identically punched, the hooks 28 and clamps 29 will act as positioning and holding members to hold each successive sheet in the same position in the templet with respect thereto.

It is assumed that a number of holes, each in an accurately predetermined location, is to be punched, in a punch press, in the work 34. Let the centers of these holes be assumed to be at the points 35. The outer periphery of the templet is formed generally as an irregular polygon with corners at or nearvor with sides passing through the points 35. Arcuate notches 36 .having their centers at the respective points 35 and of any convenient radius greater than the respective radii of the holes to be punched, are out into the periphery of the templet. This arcuate form of notch centered at the points 35 ls theoretically perhaps the simplest, but a modied equivalent is shown at 31 in which the notch comprises several lobes shown as arcuate, a1- though they may have any convenient form provided only that the points 38 lie on a circle centered at 35. f

The, templet as a whole is provided with handles 39 and a cross brace 40.

In operation, as shown in Figs. l0, 13 and 14, the work 34 held in the templet I9, is insert- 5 ed edgewise between the die 5| and stripper plate 52 of a punch press generally indicated at 50. In this form of the invention, the stripper plate is formed with an arcuate nose 53 to match the arcuate notches 36 of the templet and with a l vertical clearance bore 54 concentric with the notch 36 to allow the punch 55 of the pressto pass therethrough, the stripper plate 52 being rigidly mounted as usual on the press in such a position that the punch moves coaxially in the l clearance bore 54. Thus the nose 53 of the plate coacts with any notch 36 of the templet to cause the punch to strike accurately coaxially in the notch 36. The nose 53 will coact in like manner with the coarcuately positioned points 38 of a 20 lobed notch such as 31, this form of notch having the added advantage of not being easily fouled and rendered inaccurate by dirt.

Another embodiment is disclosed in Figs. 3, 5,

6, '7, 11 and 12. Here the templet body, as be- 25 fore, is a at, rectangular, hollow frame 20, 2|,

22 (and 23 not shown) with handles 39, cross brace 40, fixed hooks 28, and adjustable clamps 29 to hold a at blank 34 as before.

The means to locate the punch relatively to 30 the blank, however, are somewhat diiierent, in

that the male locating member is now on the templet and the female locating member is on the stripper plate of the press. As shown the male member on the templet is a cylindrical col- 35 lar |36 set in, extending through and secured,

"40`52"of the machine tool is formed with a corresponding nose having an arcuate notch |53 therein to match the outer contour of the circularly cylindrical collar |36 as, in the former case, the nose 53 on the plate matched the notch 45 36 in the templet.

In a minor modification of this embodiment, the collar may be replaced by four pins |38 equispaced around a circle having a point 35 as center and internally tangent around their outer 50 sides to a circle of the same curvature as the arcuate notch |53. In this case there will be a clearance hole within the ring of pins to allow the punch to pass.

A third embodiment is disclosed in Figs. 8, 9

55 and 10. Here the templet I9 is provided on its upper face with blocks 6U welded or otherwise secured thereto. Each such block 60 has an arcuate notch 236 to coact with a nose 53 on the stripper plate to locate the point 35 accu- 50 rately with respect to the punch. Alsov the templet body is formed with a clearance aperture 254 having the point 35 as center and large enough to pass the punch freely.

A characteristic and characterizing feature of 65 the invention is the fact that the templet at no time becomes in fact or structurally a part of the machine with which it is used, but when in use becomes in effect an auxiliary part of the work. The phrase freely movable and remov- 70 able while in use as applied to the templet in the appended claims is to be taken to mean that the templet is always independent structurally of the machine, and not aiected thereby except as to the coaction of the elements 36, |36 or 236 75 of the templet with the corresponding elements' Evidently the invention is equally applic-ableV to use with a drill press or analogous machine tool also, the embodiments herein disclosed being illustrative merely and may be widely modiiled and departed from without departing from the spirit and scope of the invention as pointed out in and limited only by the appended claims.

What is claimed is:

1. A templet freely movable and removable while in use for use with a machine having a material working tool and a fixed circularly arcuate positioning member, the templet having circularly arcuate positioning means thereon complementary to the fixed member on the machine to lcoact therewith to position work held in the templet positively with respect to the tool.

2. A templet freely movable and removable while in use to hold and position work inA a machine having a material working tool and a fixed arcuate positioning member, the templet comprising a body, means thereon to secure a piece of work thereto, an arcuate member on the body to coact with the first named member to position the work positively with respect to the tool, and handle means on the body to manipulate and support the templet while the tool is engaged with the work.

3. A templet freely movable and removable while in use for use with a machine having a material working tool and a iixed positioning member, the templet having a plurality of positioning means thereon each complementary to` the fixed member on the machine to coact therewith to position work held in the templet positively with respect to the tool.

4. A templet freely movable and removable while in use for use with a machine having a material working tool and a iixed circularly arcuate positioning member, the templet having a plurality of circularly arcuate positioning means thereon each complementary to the iixed member on the lmachine to coact therewith to position work held in the templet positively with respect to the tool.

5. A templet freely movable and removable while in use to hold and position work in a machine having a material working tool and a fixed arcuate positioning member, the templet comprising a body, means thereon to secure a piece of work thereto, a plurality of arcuate members on the body to coact with the rst named member to position the work positively with respect to the tool, and handle means on the body to manipulate and support the templet While the tool is engaged with the work.

6. A freely movable and removable work holding templet for use with a machine having a material working tool and a iixed positioning member, the templet having positioning means thereon to engage the xed member on the machine to position work held in the templet positively with respect to the tool, and the templet also having positioning means thereon to position and hold each of a plurality of mutually identically similar pieces of work in the same position in the templet with respect thereto.

'7. A templet freely movable and removable while in use for use with a machine having a material working tool and a fixed positioning member, the templet having positioning means thereon complementary to the xed member on the machine to coact therewith to position work held in the templet positively with respect to the tool, and the templet also having positioning means thereon to position and hold each of a plurality of. mutually identically similar pieces of work in the same position in the templet with respect thereto.

8. A freely movable and removable work holding templet for use with a machine having a material working tool and a fixed positioning member, the templet `having positioning means thereon to engage the fixed member on the machine to position work held in the templet positively with respect to the tool, and the templet also having positioning means thereon to position and hold successively and in turn each of a plurality of mutually identically similar pieces of work individually in` the same position in the templet with respect thereto.

9. A templet freely movable and removable while in use for use with a machine having a material working tooland a iixed positioning member, the templet having positioning means thereon complementary to the fixed member on the machine to coact therewith to position work held in the templet positively with respect to the tool, and the templet also having positioning means thereon to position andfhold successively and in turn each of a plurality of mutually identically similar pieces of work individually in the same position in the templet with respect thereto.

10. A freely movable and removable work holding templet for use with a machine having a material working tool and a fixed positioning member, the templet having positioning means thereon to engage the fixed member on the machine to position work held in the templet positively with respect to the tool, and the templet also having positioning means thereon to position and hold simultaneously each of a plurality of mutually identically similar pieces of work in the same position in the templet with respect thereto.

11. A templet freely movable and removable while in use for use with a machine having a material working tool and a xed positioning member, the templet having positioning means thereon complementary to the fixed member on the machine to coact therewith to position work held in the templet positively with respect to the tool, and the templet also having positioning means thereon to position and hold simultaneously each of a plurality of mutually identically similar pieces of Work in the same position in the templet with respect thereto.

YVES A. BOUGET. 

